I arrived in Mexico and my mobile data is useless for anything from social networks or safari
This seems to happen sometimes when the data link from the roamed carrier back to T-Mobile’s APN is overloaded. Does your phone allow you to manually select a different roaming partner? Do you have a ping utility to test if you have any data connection at all?
international roaming is turned on? you might try contacting TMO through either FB or Twitter in case something was missed.
Reply
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.